由于Django Haystack中的分页，对后端有多个请求

Question

我正在使用Elasticsearch作为后端。

在我的一种观点中，我这样做是一个过滤器：

SearchQuerySet().filter(...)

它返回了55个对象。

然后，我遍历for循环内的结果以对每个对象执行一些操作。

结果是预期的。 但是，当我查看elasticsearch的日志时，会看到类似以下的内容：

[12:38:16,504] {"time":"2015-07-22T12:38:16.504+05:00","starttime":"2015-07-22T12:38:16.502+05:00","localaddr":"127.0.0.1","localport":9200,"remoteaddr":"127.0.0.1","remoteport":58718,"scheme":"http","method":"GET","path":"/haystack/modelresult/_search","querystr":"_source=true","code":200,"status":"OK","size":13633,"duration":2,"year":"2015","month":"07","day":"22","hour":"12","minute":"38","dow":"Wed","cluster":"elasticsearch_venta","data":"{\"query\": {\"filtered\": {\"filter\": {\"terms\": {\"django_ct\": [\"items.item\"]}}, \"query\": {\"match_all\": {}}}}, \"from\": 0, \"size\": 10}"}
[12:38:16,509] {"time":"2015-07-22T12:38:16.509+05:00","starttime":"2015-07-22T12:38:16.508+05:00","localaddr":"127.0.0.1","localport":9200,"remoteaddr":"127.0.0.1","remoteport":58718,"scheme":"http","method":"GET","path":"/haystack/modelresult/_search","querystr":"_source=true","code":200,"status":"OK","size":13719,"duration":1,"year":"2015","month":"07","day":"22","hour":"12","minute":"38","dow":"Wed","cluster":"elasticsearch_venta","data":"{\"query\": {\"filtered\": {\"filter\": {\"terms\": {\"django_ct\": [\"items.item\"]}}, \"query\": {\"match_all\": {}}}}, \"from\": 10, \"size\": 10}"}
[12:38:16,515] {"time":"2015-07-22T12:38:16.515+05:00","starttime":"2015-07-22T12:38:16.513+05:00","localaddr":"127.0.0.1","localport":9200,"remoteaddr":"127.0.0.1","remoteport":58718,"scheme":"http","method":"GET","path":"/haystack/modelresult/_search","querystr":"_source=true","code":200,"status":"OK","size":13429,"duration":2,"year":"2015","month":"07","day":"22","hour":"12","minute":"38","dow":"Wed","cluster":"elasticsearch_venta","data":"{\"query\": {\"filtered\": {\"filter\": {\"terms\": {\"django_ct\": [\"items.item\"]}}, \"query\": {\"match_all\": {}}}}, \"from\": 20, \"size\": 10}"}

也就是说，SearchQuerySet每次都返回10个项目。

我尝试了load_all但没有帮助。

我认为这是因为SearchQuerySet返回了分页的结果。

如何将对Elasticsearch的请求数量减少到一个，即一次获取所有项目？

Answer 1

在您的SearchView中将results_per_page设置为None。 SearchView在官方仓库中定义为波纹管：

class SearchView(object):
    ...
    results_per_page = RESULTS_PER_PAGE

Answer 2

SearchQuerySet().filter(...).query.get_results()